Some candidates come to me talking about their accomplishments as if they have single-handedly saved their entire industry.
In the essays and interviews, you will fail if you come across as a pure self-promoter. Of course you need to show self confidence, but the Top B Schools are looking for leaders who know how to work on talented teams.
That’s why the best applications have a tone of accomplishment balanced by a degree of humility and perspective. Nobody expects you to be perfect.
Don’t come across as a megalomaniac.